add FocusVisualStyle for some controls

src/Shared/HandyControl_Shared/Themes/Styles/Base/SideMenuBaseStyle.xaml

@@ -2,7 +2,11 @@
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
-    <Style x:Key="SideMenuItemBaseStyle" TargetType="controls:SideMenuItem">
+    <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="BaseStyle.xaml"/>
+    </ResourceDictionary.MergedDictionaries>
+
+    <Style x:Key="SideMenuItemBaseStyle" BasedOn="{StaticResource BaseStyle}" TargetType="controls:SideMenuItem">
         <Setter Property="Role" Value="Item"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
@@ -82,7 +86,7 @@
         </Setter>
     </Style>
 
-    <Style x:Key="SideMenuItemHeaderBaseStyle" TargetType="controls:SideMenuItem">
+    <Style x:Key="SideMenuItemHeaderBaseStyle" BasedOn="{StaticResource BaseStyle}" TargetType="controls:SideMenuItem">
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="ItemContainerStyle" Value="{StaticResource SideMenuItemBaseStyle}"/>
@@ -169,6 +173,8 @@
     </Style>
 
     <Style x:Key="SideMenuBaseStyle" TargetType="controls:SideMenu">
+        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
+        <Setter Property="Focusable" Value="False"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="ItemContainerStyle" Value="{StaticResource SideMenuItemHeaderBaseStyle}"/>